| Leidschendam to Sestu | 911.35 mi (1,466.68 km) |
| Leidschendam to Settimo Torinese | 504.09 mi (811.25 km) |
| Leidschendam to Seveso | 494.06 mi (795.11 km) |
| Leidschendam to Sezze | 836.96 mi (1,346.96 km) |
| Leidschendam to Siano | 918.71 mi (1,478.52 km) |
| Leidschendam to Siena | 685.30 mi (1,102.88 km) |
| Leidschendam to Signa | 651.32 mi (1,048.20 km) |
| Leidschendam to Silea | 570.36 mi (917.91 km) |
| Leidschendam to Silvi Paese | 799.12 mi (1,286.06 km) |
| Leidschendam to Sinalunga | 700.47 mi (1,127.29 km) |
| Leidschendam to Siniscola | 833.81 mi (1,341.89 km) |
| Leidschendam to Sinnai | 912.46 mi (1,468.47 km) |
| Leidschendam to Siracusa | 1,164.64 mi (1,874.31 km) |
| Leidschendam to Solaro | 494.81 mi (796.32 km) |
| Leidschendam to Soliera | 588.61 mi (947.27 km) |
